Analysis

  • max time kernel
    154s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:55

General

  • Target

    78ce87f06804707df3fc142ee2a55aab298bf25351c1ca308856d52c923779d5.exe

  • Size

    445KB

  • MD5

    84579ab6d073ada9417e0c7f95d7c814

  • SHA1

    3e040f3163d6085bbb9dc70790201fac2a9977c8

  • SHA256

    78ce87f06804707df3fc142ee2a55aab298bf25351c1ca308856d52c923779d5

  • SHA512

    61417b5baa2f219bcf7f9574427948b7827478ff2ee9ff99052346aa3ae62f207d4770f3dce2b9f30abc6a2290a59ea5b36d0cabb9ef41f8541cc440001fcf6d

  • SSDEEP

    6144:XzfvZH0sFtGo87F1p/N4AiCr9FkOhERQMgCBiyoj2e937bkL/26hF/ki3xB6UgLR:rZUCMX9/nQmEiMpiyuZvkL/2oCzkVO

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\78ce87f06804707df3fc142ee2a55aab298bf25351c1ca308856d52c923779d5.exe
    "C:\Users\Admin\AppData\Local\Temp\78ce87f06804707df3fc142ee2a55aab298bf25351c1ca308856d52c923779d5.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3800
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4036
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3884
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2540
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3972
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2188
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4912
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4272
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:884
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4352
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2200
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4744
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:5040
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1384

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiE8B1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            811fb00a4250c01bd1b82744ae2c60f5

            SHA1

            e7dae9240e9d7480634be8fa91e9804a8b5069b7

            SHA256

            dbc8fed20e87d269890ee15e56ba1c8f6987476df3706650faeb44c58c868f73

            SHA512

            69c7211979866b3691e79bca4478a3777336a9369d0b63d5eb0600af187631bfdc7f5ade3bfa8547f9cd9bd1ec04a211f244d2750f07c8648b3d5387d9d584a0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            811fb00a4250c01bd1b82744ae2c60f5

            SHA1

            e7dae9240e9d7480634be8fa91e9804a8b5069b7

            SHA256

            dbc8fed20e87d269890ee15e56ba1c8f6987476df3706650faeb44c58c868f73

            SHA512

            69c7211979866b3691e79bca4478a3777336a9369d0b63d5eb0600af187631bfdc7f5ade3bfa8547f9cd9bd1ec04a211f244d2750f07c8648b3d5387d9d584a0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            811fb00a4250c01bd1b82744ae2c60f5

            SHA1

            e7dae9240e9d7480634be8fa91e9804a8b5069b7

            SHA256

            dbc8fed20e87d269890ee15e56ba1c8f6987476df3706650faeb44c58c868f73

            SHA512

            69c7211979866b3691e79bca4478a3777336a9369d0b63d5eb0600af187631bfdc7f5ade3bfa8547f9cd9bd1ec04a211f244d2750f07c8648b3d5387d9d584a0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            811fb00a4250c01bd1b82744ae2c60f5

            SHA1

            e7dae9240e9d7480634be8fa91e9804a8b5069b7

            SHA256

            dbc8fed20e87d269890ee15e56ba1c8f6987476df3706650faeb44c58c868f73

            SHA512

            69c7211979866b3691e79bca4478a3777336a9369d0b63d5eb0600af187631bfdc7f5ade3bfa8547f9cd9bd1ec04a211f244d2750f07c8648b3d5387d9d584a0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8a70d1198fd52025f1c2c64112286557

            SHA1

            3fcf245db5bbf8764d5823c0fd2188c117d925f6

            SHA256

            aaf629dc41945dc921b0c6ea55568fe306c759b27c0647689a20737058de2a72

            SHA512

            6871a83e3310f8a2f391bc461b83e2f2c4ae0cd8cc5662a34591c9b52c01cfa95b30e9ce09ba3b0d05e4ffacb83ec30a92ad42180ef949d771b7d661ab6ab022

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8a70d1198fd52025f1c2c64112286557

            SHA1

            3fcf245db5bbf8764d5823c0fd2188c117d925f6

            SHA256

            aaf629dc41945dc921b0c6ea55568fe306c759b27c0647689a20737058de2a72

            SHA512

            6871a83e3310f8a2f391bc461b83e2f2c4ae0cd8cc5662a34591c9b52c01cfa95b30e9ce09ba3b0d05e4ffacb83ec30a92ad42180ef949d771b7d661ab6ab022

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8a70d1198fd52025f1c2c64112286557

            SHA1

            3fcf245db5bbf8764d5823c0fd2188c117d925f6

            SHA256

            aaf629dc41945dc921b0c6ea55568fe306c759b27c0647689a20737058de2a72

            SHA512

            6871a83e3310f8a2f391bc461b83e2f2c4ae0cd8cc5662a34591c9b52c01cfa95b30e9ce09ba3b0d05e4ffacb83ec30a92ad42180ef949d771b7d661ab6ab022

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            125add62bd51f167f957226354cb9131

            SHA1

            b450a408f05c9dfc0745a499dddd7b4ad6b19add

            SHA256

            a85526669eaf0cfd81249d81eb65102649744d09a2c8282e66d6379b64d46f54

            SHA512

            c5dc3e656ca4fd5c89300e202c837f2445fb60dd27c01f6e9a8c795ed5accb1f91ac908719c225c16ce5243017eb44480f6602d62b0d3d0ed7be9ac91fa2acdf

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            125add62bd51f167f957226354cb9131

            SHA1

            b450a408f05c9dfc0745a499dddd7b4ad6b19add

            SHA256

            a85526669eaf0cfd81249d81eb65102649744d09a2c8282e66d6379b64d46f54

            SHA512

            c5dc3e656ca4fd5c89300e202c837f2445fb60dd27c01f6e9a8c795ed5accb1f91ac908719c225c16ce5243017eb44480f6602d62b0d3d0ed7be9ac91fa2acdf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            60ab8143b9def2c0548b9c9e6fa3b7c4

            SHA1

            5ae22e0cdfa675c4e2603f8892a77adf2202db30

            SHA256

            4479dd6c21de1dad43a75b21905c9b247594d0f0cbbb1c31ea282352de22c289

            SHA512

            ae96d53bab502317f31cba4210b62fc4d6bd8689ef542b3ec509208c6bbb202905dc0ea2d3d8dbd78ff75c1a2b0d0bac8b3add5a0384f9e707c960b687e9a7fd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            60ab8143b9def2c0548b9c9e6fa3b7c4

            SHA1

            5ae22e0cdfa675c4e2603f8892a77adf2202db30

            SHA256

            4479dd6c21de1dad43a75b21905c9b247594d0f0cbbb1c31ea282352de22c289

            SHA512

            ae96d53bab502317f31cba4210b62fc4d6bd8689ef542b3ec509208c6bbb202905dc0ea2d3d8dbd78ff75c1a2b0d0bac8b3add5a0384f9e707c960b687e9a7fd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            60ab8143b9def2c0548b9c9e6fa3b7c4

            SHA1

            5ae22e0cdfa675c4e2603f8892a77adf2202db30

            SHA256

            4479dd6c21de1dad43a75b21905c9b247594d0f0cbbb1c31ea282352de22c289

            SHA512

            ae96d53bab502317f31cba4210b62fc4d6bd8689ef542b3ec509208c6bbb202905dc0ea2d3d8dbd78ff75c1a2b0d0bac8b3add5a0384f9e707c960b687e9a7fd

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80e44390eaa1338170d09765a1605105

            SHA1

            1093735534bb889c5d1ec473c575d7b03f00396a

            SHA256

            7158f089d43dccfb8c53931dfc794d9c66e603e480d9a8ff70d58210097049ff

            SHA512

            62ae7797a7d083ce84cc2270edbe4d6d84f2909b86f69b017a58aa35fbf10590c1a7c26bd506ccd7f995e78eef571da077f570bbcb82cb5dcde63f1ab0a6fcff

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80e44390eaa1338170d09765a1605105

            SHA1

            1093735534bb889c5d1ec473c575d7b03f00396a

            SHA256

            7158f089d43dccfb8c53931dfc794d9c66e603e480d9a8ff70d58210097049ff

            SHA512

            62ae7797a7d083ce84cc2270edbe4d6d84f2909b86f69b017a58aa35fbf10590c1a7c26bd506ccd7f995e78eef571da077f570bbcb82cb5dcde63f1ab0a6fcff

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80e44390eaa1338170d09765a1605105

            SHA1

            1093735534bb889c5d1ec473c575d7b03f00396a

            SHA256

            7158f089d43dccfb8c53931dfc794d9c66e603e480d9a8ff70d58210097049ff

            SHA512

            62ae7797a7d083ce84cc2270edbe4d6d84f2909b86f69b017a58aa35fbf10590c1a7c26bd506ccd7f995e78eef571da077f570bbcb82cb5dcde63f1ab0a6fcff

          • memory/884-157-0x0000000000000000-mapping.dmp

          • memory/2188-141-0x0000000000000000-mapping.dmp

          • memory/2200-164-0x0000000000000000-mapping.dmp

          • memory/2540-139-0x0000000000000000-mapping.dmp

          • memory/3884-136-0x0000000000000000-mapping.dmp

          • memory/3972-140-0x0000000000000000-mapping.dmp

          • memory/4036-135-0x0000000000000000-mapping.dmp

          • memory/4272-152-0x0000000000000000-mapping.dmp

          • memory/4352-158-0x0000000000000000-mapping.dmp

          • memory/4744-165-0x0000000000000000-mapping.dmp

          • memory/4912-146-0x0000000000000000-mapping.dmp